17c478bd9Sstevel@tonic-gate /******************************************************************************
27c478bd9Sstevel@tonic-gate *
37c478bd9Sstevel@tonic-gate * Module Name: exconvrt - Object conversion routines
47c478bd9Sstevel@tonic-gate *
57c478bd9Sstevel@tonic-gate *****************************************************************************/
67c478bd9Sstevel@tonic-gate
7*35786f68SRobert Mustacchi /******************************************************************************
8*35786f68SRobert Mustacchi *
9*35786f68SRobert Mustacchi * 1. Copyright Notice
10*35786f68SRobert Mustacchi *
11*35786f68SRobert Mustacchi * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp.
127c478bd9Sstevel@tonic-gate * All rights reserved.
137c478bd9Sstevel@tonic-gate *
14*35786f68SRobert Mustacchi * 2. License
15*35786f68SRobert Mustacchi *
16*35786f68SRobert Mustacchi * 2.1. This is your license from Intel Corp. under its intellectual property
17*35786f68SRobert Mustacchi * rights. You may have additional license terms from the party that provided
18*35786f68SRobert Mustacchi * you this software, covering your right to use that party's intellectual
19*35786f68SRobert Mustacchi * property rights.
20*35786f68SRobert Mustacchi *
21*35786f68SRobert Mustacchi * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22*35786f68SRobert Mustacchi * copy of the source code appearing in this file ("Covered Code") an
23*35786f68SRobert Mustacchi * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24*35786f68SRobert Mustacchi * base code distributed originally by Intel ("Original Intel Code") to copy,
25*35786f68SRobert Mustacchi * make derivatives, distribute, use and display any portion of the Covered
26*35786f68SRobert Mustacchi * Code in any form, with the right to sublicense such rights; and
27*35786f68SRobert Mustacchi *
28*35786f68SRobert Mustacchi * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29*35786f68SRobert Mustacchi * license (with the right to sublicense), under only those claims of Intel
30*35786f68SRobert Mustacchi * patents that are infringed by the Original Intel Code, to make, use, sell,
31*35786f68SRobert Mustacchi * offer to sell, and import the Covered Code and derivative works thereof
32*35786f68SRobert Mustacchi * solely to the minimum extent necessary to exercise the above copyright
33*35786f68SRobert Mustacchi * license, and in no event shall the patent license extend to any additions
34*35786f68SRobert Mustacchi * to or modifications of the Original Intel Code. No other license or right
35*35786f68SRobert Mustacchi * is granted directly or by implication, estoppel or otherwise;
36*35786f68SRobert Mustacchi *
37*35786f68SRobert Mustacchi * The above copyright and patent license is granted only if the following
38*35786f68SRobert Mustacchi * conditions are met:
39*35786f68SRobert Mustacchi *
40*35786f68SRobert Mustacchi * 3. Conditions
41*35786f68SRobert Mustacchi *
42*35786f68SRobert Mustacchi * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
44*35786f68SRobert Mustacchi * Code or modification with rights to further distribute source must include
45*35786f68SRobert Mustacchi * the above Copyright Notice, the above License, this list of Conditions,
46*35786f68SRobert Mustacchi * and the following Disclaimer and Export Compliance provision. In addition,
47*35786f68SRobert Mustacchi * Licensee must cause all Covered Code to which Licensee contributes to
48*35786f68SRobert Mustacchi * contain a file documenting the changes Licensee made to create that Covered
49*35786f68SRobert Mustacchi * Code and the date of any change. Licensee must include in that file the
50*35786f68SRobert Mustacchi * documentation of any changes made by any predecessor Licensee. Licensee
51*35786f68SRobert Mustacchi * must include a prominent statement that the modification is derived,
52*35786f68SRobert Mustacchi * directly or indirectly, from Original Intel Code.
53*35786f68SRobert Mustacchi *
54*35786f68SRobert Mustacchi * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
56*35786f68SRobert Mustacchi * Code or modification without rights to further distribute source must
57*35786f68SRobert Mustacchi * include the following Disclaimer and Export Compliance provision in the
58*35786f68SRobert Mustacchi * documentation and/or other materials provided with distribution. In
59*35786f68SRobert Mustacchi * addition, Licensee may not authorize further sublicense of source of any
60*35786f68SRobert Mustacchi * portion of the Covered Code, and must include terms to the effect that the
61*35786f68SRobert Mustacchi * license from Licensee to its licensee is limited to the intellectual
62*35786f68SRobert Mustacchi * property embodied in the software Licensee provides to its licensee, and
63*35786f68SRobert Mustacchi * not to intellectual property embodied in modifications its licensee may
64*35786f68SRobert Mustacchi * make.
65*35786f68SRobert Mustacchi *
66*35786f68SRobert Mustacchi * 3.3. Redistribution of Executable. Redistribution in executable form of any
67*35786f68SRobert Mustacchi * substantial portion of the Covered Code or modification must reproduce the
68*35786f68SRobert Mustacchi * above Copyright Notice, and the following Disclaimer and Export Compliance
69*35786f68SRobert Mustacchi * provision in the documentation and/or other materials provided with the
70*35786f68SRobert Mustacchi * distribution.
71*35786f68SRobert Mustacchi *
72*35786f68SRobert Mustacchi * 3.4. Intel retains all right, title, and interest in and to the Original
73*35786f68SRobert Mustacchi * Intel Code.
74*35786f68SRobert Mustacchi *
75*35786f68SRobert Mustacchi * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76*35786f68SRobert Mustacchi * Intel shall be used in advertising or otherwise to promote the sale, use or
77*35786f68SRobert Mustacchi * other dealings in products derived from or relating to the Covered Code
78*35786f68SRobert Mustacchi * without prior written authorization from Intel.
79*35786f68SRobert Mustacchi *
80*35786f68SRobert Mustacchi * 4. Disclaimer and Export Compliance
81*35786f68SRobert Mustacchi *
82*35786f68SRobert Mustacchi * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83*35786f68SRobert Mustacchi * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84*35786f68SRobert Mustacchi * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85*35786f68SRobert Mustacchi * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86*35786f68SRobert Mustacchi * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87*35786f68SRobert Mustacchi * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88*35786f68SRobert Mustacchi * PARTICULAR PURPOSE.
89*35786f68SRobert Mustacchi *
90*35786f68SRobert Mustacchi * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91*35786f68SRobert Mustacchi * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92*35786f68SRobert Mustacchi * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93*35786f68SRobert Mustacchi * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94*35786f68SRobert Mustacchi * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95*35786f68SRobert Mustacchi * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96*35786f68SRobert Mustacchi * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97*35786f68SRobert Mustacchi * LIMITED REMEDY.
98*35786f68SRobert Mustacchi *
99*35786f68SRobert Mustacchi * 4.3. Licensee shall not export, either directly or indirectly, any of this
100*35786f68SRobert Mustacchi * software or system incorporating such software without first obtaining any
101*35786f68SRobert Mustacchi * required license or other approval from the U. S. Department of Commerce or
102*35786f68SRobert Mustacchi * any other agency or department of the United States Government. In the
103*35786f68SRobert Mustacchi * event Licensee exports any such software from the United States or
104*35786f68SRobert Mustacchi * re-exports any such software from a foreign destination, Licensee shall
105*35786f68SRobert Mustacchi * ensure that the distribution and export/re-export of the software is in
106*35786f68SRobert Mustacchi * compliance with all laws, regulations, orders, or other restrictions of the
107*35786f68SRobert Mustacchi * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108*35786f68SRobert Mustacchi * any of its subsidiaries will export/re-export any technical data, process,
109*35786f68SRobert Mustacchi * software, or service, directly or indirectly, to any country for which the
110*35786f68SRobert Mustacchi * United States government or any agency thereof requires an export license,
111*35786f68SRobert Mustacchi * other governmental approval, or letter of assurance, without first obtaining
112*35786f68SRobert Mustacchi * such license, approval or letter.
113*35786f68SRobert Mustacchi *
114*35786f68SRobert Mustacchi *****************************************************************************
115*35786f68SRobert Mustacchi *
116*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
117*35786f68SRobert Mustacchi * following license:
118*35786f68SRobert Mustacchi *
11926f3cdf0SGordon Ross * Redistribution and use in source and binary forms, with or without
12026f3cdf0SGordon Ross * modification, are permitted provided that the following conditions
12126f3cdf0SGordon Ross * are met:
12226f3cdf0SGordon Ross * 1. Redistributions of source code must retain the above copyright
12326f3cdf0SGordon Ross * notice, this list of conditions, and the following disclaimer,
12426f3cdf0SGordon Ross * without modification.
12526f3cdf0SGordon Ross * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12626f3cdf0SGordon Ross * substantially similar to the "NO WARRANTY" disclaimer below
12726f3cdf0SGordon Ross * ("Disclaimer") and any redistribution must be conditioned upon
12826f3cdf0SGordon Ross * including a substantially similar Disclaimer requirement for further
12926f3cdf0SGordon Ross * binary redistribution.
13026f3cdf0SGordon Ross * 3. Neither the names of the above-listed copyright holders nor the names
13126f3cdf0SGordon Ross * of any contributors may be used to endorse or promote products derived
13226f3cdf0SGordon Ross * from this software without specific prior written permission.
13326f3cdf0SGordon Ross *
13426f3cdf0SGordon Ross * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
13526f3cdf0SGordon Ross * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136*35786f68SRobert Mustacchi * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
13726f3cdf0SGordon Ross * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138*35786f68SRobert Mustacchi * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139*35786f68SRobert Mustacchi * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140*35786f68SRobert Mustacchi * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141*35786f68SRobert Mustacchi * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142*35786f68SRobert Mustacchi * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143*35786f68SRobert Mustacchi * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144*35786f68SRobert Mustacchi * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145*35786f68SRobert Mustacchi *
146*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
147*35786f68SRobert Mustacchi * GNU General Public License ("GPL") version 2 as published by the Free
148*35786f68SRobert Mustacchi * Software Foundation.
149*35786f68SRobert Mustacchi *
150*35786f68SRobert Mustacchi *****************************************************************************/
1517c478bd9Sstevel@tonic-gate
1527c478bd9Sstevel@tonic-gate #include "acpi.h"
153aa2aa9a6SDana Myers #include "accommon.h"
1547c478bd9Sstevel@tonic-gate #include "acinterp.h"
1557c478bd9Sstevel@tonic-gate #include "amlcode.h"
1567c478bd9Sstevel@tonic-gate
1577c478bd9Sstevel@tonic-gate
1587c478bd9Sstevel@tonic-gate #define _COMPONENT ACPI_EXECUTER
1597c478bd9Sstevel@tonic-gate ACPI_MODULE_NAME ("exconvrt")
1607c478bd9Sstevel@tonic-gate
1617c478bd9Sstevel@tonic-gate /* Local prototypes */
1627c478bd9Sstevel@tonic-gate
1637c478bd9Sstevel@tonic-gate static UINT32
1647c478bd9Sstevel@tonic-gate AcpiExConvertToAscii (
16526f3cdf0SGordon Ross UINT64 Integer,
1667c478bd9Sstevel@tonic-gate UINT16 Base,
1677c478bd9Sstevel@tonic-gate UINT8 *String,
1687c478bd9Sstevel@tonic-gate UINT8 MaxLength);
1697c478bd9Sstevel@tonic-gate
1707c478bd9Sstevel@tonic-gate
1717c478bd9Sstevel@tonic-gate /*******************************************************************************
1727c478bd9Sstevel@tonic-gate *
1737c478bd9Sstevel@tonic-gate * FUNCTION: AcpiExConvertToInteger
1747c478bd9Sstevel@tonic-gate *
175*35786f68SRobert Mustacchi * PARAMETERS: ObjDesc - Object to be converted. Must be an
176*35786f68SRobert Mustacchi * Integer, Buffer, or String
177*35786f68SRobert Mustacchi * ResultDesc - Where the new Integer object is returned
178*35786f68SRobert Mustacchi * ImplicitConversion - Used for string conversion
1797c478bd9Sstevel@tonic-gate *
1807c478bd9Sstevel@tonic-gate * RETURN: Status
1817c478bd9Sstevel@tonic-gate *
1827c478bd9Sstevel@tonic-gate * DESCRIPTION: Convert an ACPI Object to an integer.
1837c478bd9Sstevel@tonic-gate *
1847c478bd9Sstevel@tonic-gate ******************************************************************************/
1857c478bd9Sstevel@tonic-gate
1867c478bd9Sstevel@tonic-gate ACPI_STATUS
AcpiExConvertToInteger(ACPI_OPERAND_OBJECT * ObjDesc,ACPI_OPERAND_OBJECT ** ResultDesc,UINT32 ImplicitConversion)1877c478bd9Sstevel@tonic-gate AcpiExConvertToInteger (
1887c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT *ObjDesc,
1897c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT **ResultDesc,
190*35786f68SRobert Mustacchi UINT32 ImplicitConversion)
1917c478bd9Sstevel@tonic-gate {
1927c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT *ReturnDesc;
1937c478bd9Sstevel@tonic-gate UINT8 *Pointer;
19426f3cdf0SGordon Ross UINT64 Result;
1957c478bd9Sstevel@tonic-gate UINT32 i;
1967c478bd9Sstevel@tonic-gate UINT32 Count;
1977c478bd9Sstevel@tonic-gate
1987c478bd9Sstevel@tonic-gate
19927f7c583Smyers ACPI_FUNCTION_TRACE_PTR (ExConvertToInteger, ObjDesc);
2007c478bd9Sstevel@tonic-gate
2017c478bd9Sstevel@tonic-gate
202aa2aa9a6SDana Myers switch (ObjDesc->Common.Type)
2037c478bd9Sstevel@tonic-gate {
2047c478bd9Sstevel@tonic-gate case ACPI_TYPE_INTEGER:
2057c478bd9Sstevel@tonic-gate
2067c478bd9Sstevel@tonic-gate /* No conversion necessary */
2077c478bd9Sstevel@tonic-gate
2087c478bd9Sstevel@tonic-gate *ResultDesc = ObjDesc;
2097c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_OK);
2107c478bd9Sstevel@tonic-gate
2117c478bd9Sstevel@tonic-gate case ACPI_TYPE_BUFFER:
2127c478bd9Sstevel@tonic-gate case ACPI_TYPE_STRING:
2137c478bd9Sstevel@tonic-gate
2147c478bd9Sstevel@tonic-gate /* Note: Takes advantage of common buffer/string fields */
2157c478bd9Sstevel@tonic-gate
2167c478bd9Sstevel@tonic-gate Pointer = ObjDesc->Buffer.Pointer;
2177c478bd9Sstevel@tonic-gate Count = ObjDesc->Buffer.Length;
2187c478bd9Sstevel@tonic-gate break;
2197c478bd9Sstevel@tonic-gate
2207c478bd9Sstevel@tonic-gate default:
2217b1019a6SJerry Jelinek
2227c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_TYPE);
2237c478bd9Sstevel@tonic-gate }
2247c478bd9Sstevel@tonic-gate
2257c478bd9Sstevel@tonic-gate /*
226db2bae30SDana Myers * Convert the buffer/string to an integer. Note that both buffers and
2277c478bd9Sstevel@tonic-gate * strings are treated as raw data - we don't convert ascii to hex for
2287c478bd9Sstevel@tonic-gate * strings.
2297c478bd9Sstevel@tonic-gate *
2307c478bd9Sstevel@tonic-gate * There are two terminating conditions for the loop:
2317c478bd9Sstevel@tonic-gate * 1) The size of an integer has been reached, or
2327c478bd9Sstevel@tonic-gate * 2) The end of the buffer or string has been reached
2337c478bd9Sstevel@tonic-gate */
2347c478bd9Sstevel@tonic-gate Result = 0;
2357c478bd9Sstevel@tonic-gate
2367c478bd9Sstevel@tonic-gate /* String conversion is different than Buffer conversion */
2377c478bd9Sstevel@tonic-gate
238aa2aa9a6SDana Myers switch (ObjDesc->Common.Type)
2397c478bd9Sstevel@tonic-gate {
2407c478bd9Sstevel@tonic-gate case ACPI_TYPE_STRING:
2417c478bd9Sstevel@tonic-gate /*
2427c478bd9Sstevel@tonic-gate * Convert string to an integer - for most cases, the string must be
243db2bae30SDana Myers * hexadecimal as per the ACPI specification. The only exception (as
2447c478bd9Sstevel@tonic-gate * of ACPI 3.0) is that the ToInteger() operator allows both decimal
2457c478bd9Sstevel@tonic-gate * and hexadecimal strings (hex prefixed with "0x").
246*35786f68SRobert Mustacchi *
247*35786f68SRobert Mustacchi * Explicit conversion is used only by ToInteger.
248*35786f68SRobert Mustacchi * All other string-to-integer conversions are implicit conversions.
2497c478bd9Sstevel@tonic-gate */
250*35786f68SRobert Mustacchi if (ImplicitConversion)
251*35786f68SRobert Mustacchi {
252*35786f68SRobert Mustacchi Result = AcpiUtImplicitStrtoul64 (ACPI_CAST_PTR (char, Pointer));
253*35786f68SRobert Mustacchi }
254*35786f68SRobert Mustacchi else
2557c478bd9Sstevel@tonic-gate {
256*35786f68SRobert Mustacchi Result = AcpiUtExplicitStrtoul64 (ACPI_CAST_PTR (char, Pointer));
2577c478bd9Sstevel@tonic-gate }
2587c478bd9Sstevel@tonic-gate break;
2597c478bd9Sstevel@tonic-gate
2607c478bd9Sstevel@tonic-gate case ACPI_TYPE_BUFFER:
2617c478bd9Sstevel@tonic-gate
2627c478bd9Sstevel@tonic-gate /* Check for zero-length buffer */
2637c478bd9Sstevel@tonic-gate
2647c478bd9Sstevel@tonic-gate if (!Count)
2657c478bd9Sstevel@tonic-gate {
2667c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_AML_BUFFER_LIMIT);
2677c478bd9Sstevel@tonic-gate }
2687c478bd9Sstevel@tonic-gate
2697c478bd9Sstevel@tonic-gate /* Transfer no more than an integer's worth of data */
2707c478bd9Sstevel@tonic-gate
2717c478bd9Sstevel@tonic-gate if (Count > AcpiGbl_IntegerByteWidth)
2727c478bd9Sstevel@tonic-gate {
2737c478bd9Sstevel@tonic-gate Count = AcpiGbl_IntegerByteWidth;
2747c478bd9Sstevel@tonic-gate }
2757c478bd9Sstevel@tonic-gate
2767c478bd9Sstevel@tonic-gate /*
2777c478bd9Sstevel@tonic-gate * Convert buffer to an integer - we simply grab enough raw data
2787c478bd9Sstevel@tonic-gate * from the buffer to fill an integer
2797c478bd9Sstevel@tonic-gate */
2807c478bd9Sstevel@tonic-gate for (i = 0; i < Count; i++)
2817c478bd9Sstevel@tonic-gate {
2827c478bd9Sstevel@tonic-gate /*
2837c478bd9Sstevel@tonic-gate * Get next byte and shift it into the Result.
2847c478bd9Sstevel@tonic-gate * Little endian is used, meaning that the first byte of the buffer
2857c478bd9Sstevel@tonic-gate * is the LSB of the integer
2867c478bd9Sstevel@tonic-gate */
28726f3cdf0SGordon Ross Result |= (((UINT64) Pointer[i]) << (i * 8));
2887c478bd9Sstevel@tonic-gate }
2897c478bd9Sstevel@tonic-gate break;
2907c478bd9Sstevel@tonic-gate
2917c478bd9Sstevel@tonic-gate default:
292db2bae30SDana Myers
2937c478bd9Sstevel@tonic-gate /* No other types can get here */
2947b1019a6SJerry Jelinek
2957c478bd9Sstevel@tonic-gate break;
2967c478bd9Sstevel@tonic-gate }
2977c478bd9Sstevel@tonic-gate
2987c478bd9Sstevel@tonic-gate /* Create a new integer */
2997c478bd9Sstevel@tonic-gate
30057190917SDana Myers ReturnDesc = AcpiUtCreateIntegerObject (Result);
3017c478bd9Sstevel@tonic-gate if (!ReturnDesc)
3027c478bd9Sstevel@tonic-gate {
3037c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_NO_MEMORY);
3047c478bd9Sstevel@tonic-gate }
3057c478bd9Sstevel@tonic-gate
30627f7c583Smyers ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n",
30727f7c583Smyers ACPI_FORMAT_UINT64 (Result)));
30827f7c583Smyers
3097c478bd9Sstevel@tonic-gate /* Save the Result */
3107c478bd9Sstevel@tonic-gate
3117b1019a6SJerry Jelinek (void) AcpiExTruncateFor32bitTable (ReturnDesc);
3127c478bd9Sstevel@tonic-gate *ResultDesc = ReturnDesc;
3137c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_OK);
3147c478bd9Sstevel@tonic-gate }
3157c478bd9Sstevel@tonic-gate
3167c478bd9Sstevel@tonic-gate
3177c478bd9Sstevel@tonic-gate /*******************************************************************************
3187c478bd9Sstevel@tonic-gate *
3197c478bd9Sstevel@tonic-gate * FUNCTION: AcpiExConvertToBuffer
3207c478bd9Sstevel@tonic-gate *
321db2bae30SDana Myers * PARAMETERS: ObjDesc - Object to be converted. Must be an
3227c478bd9Sstevel@tonic-gate * Integer, Buffer, or String
3237c478bd9Sstevel@tonic-gate * ResultDesc - Where the new buffer object is returned
3247c478bd9Sstevel@tonic-gate *
3257c478bd9Sstevel@tonic-gate * RETURN: Status
3267c478bd9Sstevel@tonic-gate *
3277c478bd9Sstevel@tonic-gate * DESCRIPTION: Convert an ACPI Object to a Buffer
3287c478bd9Sstevel@tonic-gate *
3297c478bd9Sstevel@tonic-gate ******************************************************************************/
3307c478bd9Sstevel@tonic-gate
3317c478bd9Sstevel@tonic-gate ACPI_STATUS
AcpiExConvertToBuffer(ACPI_OPERAND_OBJECT * ObjDesc,ACPI_OPERAND_OBJECT ** ResultDesc)3327c478bd9Sstevel@tonic-gate AcpiExConvertToBuffer (
3337c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT *ObjDesc,
3347c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT **ResultDesc)
3357c478bd9Sstevel@tonic-gate {
3367c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT *ReturnDesc;
3377c478bd9Sstevel@tonic-gate UINT8 *NewBuf;
3387c478bd9Sstevel@tonic-gate
3397c478bd9Sstevel@tonic-gate
34027f7c583Smyers ACPI_FUNCTION_TRACE_PTR (ExConvertToBuffer, ObjDesc);
3417c478bd9Sstevel@tonic-gate
3427c478bd9Sstevel@tonic-gate
343aa2aa9a6SDana Myers switch (ObjDesc->Common.Type)
3447c478bd9Sstevel@tonic-gate {
3457c478bd9Sstevel@tonic-gate case ACPI_TYPE_BUFFER:
3467c478bd9Sstevel@tonic-gate
3477c478bd9Sstevel@tonic-gate /* No conversion necessary */
3487c478bd9Sstevel@tonic-gate
3497c478bd9Sstevel@tonic-gate *ResultDesc = ObjDesc;
3507c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_OK);
3517c478bd9Sstevel@tonic-gate
3527c478bd9Sstevel@tonic-gate
3537c478bd9Sstevel@tonic-gate case ACPI_TYPE_INTEGER:
3547c478bd9Sstevel@tonic-gate /*
3557c478bd9Sstevel@tonic-gate * Create a new Buffer object.
3567c478bd9Sstevel@tonic-gate * Need enough space for one integer
3577c478bd9Sstevel@tonic-gate */
3587c478bd9Sstevel@tonic-gate ReturnDesc = AcpiUtCreateBufferObject (AcpiGbl_IntegerByteWidth);
3597c478bd9Sstevel@tonic-gate if (!ReturnDesc)
3607c478bd9Sstevel@tonic-gate {
3617c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_NO_MEMORY);
3627c478bd9Sstevel@tonic-gate }
3637c478bd9Sstevel@tonic-gate
3647c478bd9Sstevel@tonic-gate /* Copy the integer to the buffer, LSB first */
3657c478bd9Sstevel@tonic-gate
3667c478bd9Sstevel@tonic-gate NewBuf = ReturnDesc->Buffer.Pointer;
3677b1019a6SJerry Jelinek memcpy (NewBuf, &ObjDesc->Integer.Value, AcpiGbl_IntegerByteWidth);
3687c478bd9Sstevel@tonic-gate break;
3697c478bd9Sstevel@tonic-gate
3707c478bd9Sstevel@tonic-gate case ACPI_TYPE_STRING:
3717c478bd9Sstevel@tonic-gate /*
3727c478bd9Sstevel@tonic-gate * Create a new Buffer object
3737c478bd9Sstevel@tonic-gate * Size will be the string length
3747c478bd9Sstevel@tonic-gate *
3757c478bd9Sstevel@tonic-gate * NOTE: Add one to the string length to include the null terminator.
3767c478bd9Sstevel@tonic-gate * The ACPI spec is unclear on this subject, but there is existing
3777c478bd9Sstevel@tonic-gate * ASL/AML code that depends on the null being transferred to the new
3787c478bd9Sstevel@tonic-gate * buffer.
3797c478bd9Sstevel@tonic-gate */
3807b1019a6SJerry Jelinek ReturnDesc = AcpiUtCreateBufferObject ((ACPI_SIZE)
3817b1019a6SJerry Jelinek ObjDesc->String.Length + 1);
3827c478bd9Sstevel@tonic-gate if (!ReturnDesc)
3837c478bd9Sstevel@tonic-gate {
3847c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_NO_MEMORY);
3857c478bd9Sstevel@tonic-gate }
3867c478bd9Sstevel@tonic-gate
3877c478bd9Sstevel@tonic-gate /* Copy the string to the buffer */
3887c478bd9Sstevel@tonic-gate
3897c478bd9Sstevel@tonic-gate NewBuf = ReturnDesc->Buffer.Pointer;
3907b1019a6SJerry Jelinek strncpy ((char *) NewBuf, (char *) ObjDesc->String.Pointer,
3917c478bd9Sstevel@tonic-gate ObjDesc->String.Length);
3927c478bd9Sstevel@tonic-gate break;
3937c478bd9Sstevel@tonic-gate
3947c478bd9Sstevel@tonic-gate default:
3957b1019a6SJerry Jelinek
3967c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_TYPE);
3977c478bd9Sstevel@tonic-gate }
3987c478bd9Sstevel@tonic-gate
3997c478bd9Sstevel@tonic-gate /* Mark buffer initialized */
4007c478bd9Sstevel@tonic-gate
4017c478bd9Sstevel@tonic-gate ReturnDesc->Common.Flags |= AOPOBJ_DATA_VALID;
4027c478bd9Sstevel@tonic-gate *ResultDesc = ReturnDesc;
4037c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_OK);
4047c478bd9Sstevel@tonic-gate }
4057c478bd9Sstevel@tonic-gate
4067c478bd9Sstevel@tonic-gate
4077c478bd9Sstevel@tonic-gate /*******************************************************************************
4087c478bd9Sstevel@tonic-gate *
4097c478bd9Sstevel@tonic-gate * FUNCTION: AcpiExConvertToAscii
4107c478bd9Sstevel@tonic-gate *
4117c478bd9Sstevel@tonic-gate * PARAMETERS: Integer - Value to be converted
4127c478bd9Sstevel@tonic-gate * Base - ACPI_STRING_DECIMAL or ACPI_STRING_HEX
4137c478bd9Sstevel@tonic-gate * String - Where the string is returned
4147c478bd9Sstevel@tonic-gate * DataWidth - Size of data item to be converted, in bytes
4157c478bd9Sstevel@tonic-gate *
4167c478bd9Sstevel@tonic-gate * RETURN: Actual string length
4177c478bd9Sstevel@tonic-gate *
4187c478bd9Sstevel@tonic-gate * DESCRIPTION: Convert an ACPI Integer to a hex or decimal string
4197c478bd9Sstevel@tonic-gate *
4207c478bd9Sstevel@tonic-gate ******************************************************************************/
4217c478bd9Sstevel@tonic-gate
4227c478bd9Sstevel@tonic-gate static UINT32
AcpiExConvertToAscii(UINT64 Integer,UINT16 Base,UINT8 * String,UINT8 DataWidth)4237c478bd9Sstevel@tonic-gate AcpiExConvertToAscii (
42426f3cdf0SGordon Ross UINT64 Integer,
4257c478bd9Sstevel@tonic-gate UINT16 Base,
4267c478bd9Sstevel@tonic-gate UINT8 *String,
4277c478bd9Sstevel@tonic-gate UINT8 DataWidth)
4287c478bd9Sstevel@tonic-gate {
42926f3cdf0SGordon Ross UINT64 Digit;
430db2bae30SDana Myers UINT32 i;
431db2bae30SDana Myers UINT32 j;
432db2bae30SDana Myers UINT32 k = 0;
433db2bae30SDana Myers UINT32 HexLength;
434db2bae30SDana Myers UINT32 DecimalLength;
4357c478bd9Sstevel@tonic-gate UINT32 Remainder;
4367c478bd9Sstevel@tonic-gate BOOLEAN SupressZeros;
4377c478bd9Sstevel@tonic-gate
4387c478bd9Sstevel@tonic-gate
4397c478bd9Sstevel@tonic-gate ACPI_FUNCTION_ENTRY ();
4407c478bd9Sstevel@tonic-gate
4417c478bd9Sstevel@tonic-gate
4427c478bd9Sstevel@tonic-gate switch (Base)
4437c478bd9Sstevel@tonic-gate {
4447c478bd9Sstevel@tonic-gate case 10:
4457c478bd9Sstevel@tonic-gate
4467c478bd9Sstevel@tonic-gate /* Setup max length for the decimal number */
4477c478bd9Sstevel@tonic-gate
4487c478bd9Sstevel@tonic-gate switch (DataWidth)
4497c478bd9Sstevel@tonic-gate {
4507c478bd9Sstevel@tonic-gate case 1:
4517b1019a6SJerry Jelinek
4527c478bd9Sstevel@tonic-gate DecimalLength = ACPI_MAX8_DECIMAL_DIGITS;
4537c478bd9Sstevel@tonic-gate break;
4547c478bd9Sstevel@tonic-gate
4557c478bd9Sstevel@tonic-gate case 4:
4567b1019a6SJerry Jelinek
4577c478bd9Sstevel@tonic-gate DecimalLength = ACPI_MAX32_DECIMAL_DIGITS;
4587c478bd9Sstevel@tonic-gate break;
4597c478bd9Sstevel@tonic-gate
4607c478bd9Sstevel@tonic-gate case 8:
4617c478bd9Sstevel@tonic-gate default:
4627b1019a6SJerry Jelinek
4637c478bd9Sstevel@tonic-gate DecimalLength = ACPI_MAX64_DECIMAL_DIGITS;
4647c478bd9Sstevel@tonic-gate break;
4657c478bd9Sstevel@tonic-gate }
4667c478bd9Sstevel@tonic-gate
4677c478bd9Sstevel@tonic-gate SupressZeros = TRUE; /* No leading zeros */
4687c478bd9Sstevel@tonic-gate Remainder = 0;
4697c478bd9Sstevel@tonic-gate
4707c478bd9Sstevel@tonic-gate for (i = DecimalLength; i > 0; i--)
4717c478bd9Sstevel@tonic-gate {
4727c478bd9Sstevel@tonic-gate /* Divide by nth factor of 10 */
4737c478bd9Sstevel@tonic-gate
4747c478bd9Sstevel@tonic-gate Digit = Integer;
4757c478bd9Sstevel@tonic-gate for (j = 0; j < i; j++)
4767c478bd9Sstevel@tonic-gate {
4777c478bd9Sstevel@tonic-gate (void) AcpiUtShortDivide (Digit, 10, &Digit, &Remainder);
4787c478bd9Sstevel@tonic-gate }
4797c478bd9Sstevel@tonic-gate
4807c478bd9Sstevel@tonic-gate /* Handle leading zeros */
4817c478bd9Sstevel@tonic-gate
4827c478bd9Sstevel@tonic-gate if (Remainder != 0)
4837c478bd9Sstevel@tonic-gate {
4847c478bd9Sstevel@tonic-gate SupressZeros = FALSE;
4857c478bd9Sstevel@tonic-gate }
4867c478bd9Sstevel@tonic-gate
4877c478bd9Sstevel@tonic-gate if (!SupressZeros)
4887c478bd9Sstevel@tonic-gate {
4897c478bd9Sstevel@tonic-gate String[k] = (UINT8) (ACPI_ASCII_ZERO + Remainder);
4907c478bd9Sstevel@tonic-gate k++;
4917c478bd9Sstevel@tonic-gate }
4927c478bd9Sstevel@tonic-gate }
4937c478bd9Sstevel@tonic-gate break;
4947c478bd9Sstevel@tonic-gate
4957c478bd9Sstevel@tonic-gate case 16:
4967c478bd9Sstevel@tonic-gate
4977c478bd9Sstevel@tonic-gate /* HexLength: 2 ascii hex chars per data byte */
4987c478bd9Sstevel@tonic-gate
499db2bae30SDana Myers HexLength = ACPI_MUL_2 (DataWidth);
5007c478bd9Sstevel@tonic-gate for (i = 0, j = (HexLength-1); i < HexLength; i++, j--)
5017c478bd9Sstevel@tonic-gate {
5027c478bd9Sstevel@tonic-gate /* Get one hex digit, most significant digits first */
5037c478bd9Sstevel@tonic-gate
5047b1019a6SJerry Jelinek String[k] = (UINT8)
5057b1019a6SJerry Jelinek AcpiUtHexToAsciiChar (Integer, ACPI_MUL_4 (j));
5067c478bd9Sstevel@tonic-gate k++;
5077c478bd9Sstevel@tonic-gate }
5087c478bd9Sstevel@tonic-gate break;
5097c478bd9Sstevel@tonic-gate
5107c478bd9Sstevel@tonic-gate default:
5117c478bd9Sstevel@tonic-gate return (0);
5127c478bd9Sstevel@tonic-gate }
5137c478bd9Sstevel@tonic-gate
5147c478bd9Sstevel@tonic-gate /*
515db2bae30SDana Myers * Since leading zeros are suppressed, we must check for the case where
5167c478bd9Sstevel@tonic-gate * the integer equals 0
5177c478bd9Sstevel@tonic-gate *
5187c478bd9Sstevel@tonic-gate * Finally, null terminate the string and return the length
5197c478bd9Sstevel@tonic-gate */
5207c478bd9Sstevel@tonic-gate if (!k)
5217c478bd9Sstevel@tonic-gate {
5227c478bd9Sstevel@tonic-gate String [0] = ACPI_ASCII_ZERO;
5237c478bd9Sstevel@tonic-gate k = 1;
5247c478bd9Sstevel@tonic-gate }
5257c478bd9Sstevel@tonic-gate
5267c478bd9Sstevel@tonic-gate String [k] = 0;
5277c478bd9Sstevel@tonic-gate return ((UINT32) k);
5287c478bd9Sstevel@tonic-gate }
5297c478bd9Sstevel@tonic-gate
5307c478bd9Sstevel@tonic-gate
5317c478bd9Sstevel@tonic-gate /*******************************************************************************
5327c478bd9Sstevel@tonic-gate *
5337c478bd9Sstevel@tonic-gate * FUNCTION: AcpiExConvertToString
5347c478bd9Sstevel@tonic-gate *
535db2bae30SDana Myers * PARAMETERS: ObjDesc - Object to be converted. Must be an
5367c478bd9Sstevel@tonic-gate * Integer, Buffer, or String
5377c478bd9Sstevel@tonic-gate * ResultDesc - Where the string object is returned
5387c478bd9Sstevel@tonic-gate * Type - String flags (base and conversion type)
5397c478bd9Sstevel@tonic-gate *
5407c478bd9Sstevel@tonic-gate * RETURN: Status
5417c478bd9Sstevel@tonic-gate *
5427c478bd9Sstevel@tonic-gate * DESCRIPTION: Convert an ACPI Object to a string
5437c478bd9Sstevel@tonic-gate *
5447c478bd9Sstevel@tonic-gate ******************************************************************************/
5457c478bd9Sstevel@tonic-gate
5467c478bd9Sstevel@tonic-gate ACPI_STATUS
AcpiExConvertToString(ACPI_OPERAND_OBJECT * ObjDesc,ACPI_OPERAND_OBJECT ** ResultDesc,UINT32 Type)5477c478bd9Sstevel@tonic-gate AcpiExConvertToString (
5487c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT *ObjDesc,
5497c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT **ResultDesc,
5507c478bd9Sstevel@tonic-gate UINT32 Type)
5517c478bd9Sstevel@tonic-gate {
5527c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT *ReturnDesc;
5537c478bd9Sstevel@tonic-gate UINT8 *NewBuf;
5547c478bd9Sstevel@tonic-gate UINT32 i;
5557c478bd9Sstevel@tonic-gate UINT32 StringLength = 0;
5567c478bd9Sstevel@tonic-gate UINT16 Base = 16;
5577c478bd9Sstevel@tonic-gate UINT8 Separator = ',';
5587c478bd9Sstevel@tonic-gate
5597c478bd9Sstevel@tonic-gate
56027f7c583Smyers ACPI_FUNCTION_TRACE_PTR (ExConvertToString, ObjDesc);
5617c478bd9Sstevel@tonic-gate
5627c478bd9Sstevel@tonic-gate
563aa2aa9a6SDana Myers switch (ObjDesc->Common.Type)
5647c478bd9Sstevel@tonic-gate {
5657c478bd9Sstevel@tonic-gate case ACPI_TYPE_STRING:
5667c478bd9Sstevel@tonic-gate
5677c478bd9Sstevel@tonic-gate /* No conversion necessary */
5687c478bd9Sstevel@tonic-gate
5697c478bd9Sstevel@tonic-gate *ResultDesc = ObjDesc;
5707c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_OK);
5717c478bd9Sstevel@tonic-gate
5727c478bd9Sstevel@tonic-gate case ACPI_TYPE_INTEGER:
5737c478bd9Sstevel@tonic-gate
5747c478bd9Sstevel@tonic-gate switch (Type)
5757c478bd9Sstevel@tonic-gate {
5767c478bd9Sstevel@tonic-gate case ACPI_EXPLICIT_CONVERT_DECIMAL:
5777c478bd9Sstevel@tonic-gate
5787c478bd9Sstevel@tonic-gate /* Make room for maximum decimal number */
5797c478bd9Sstevel@tonic-gate
5807c478bd9Sstevel@tonic-gate StringLength = ACPI_MAX_DECIMAL_DIGITS;
5817c478bd9Sstevel@tonic-gate Base = 10;
5827c478bd9Sstevel@tonic-gate break;
5837c478bd9Sstevel@tonic-gate
5847c478bd9Sstevel@tonic-gate default:
5857c478bd9Sstevel@tonic-gate
5867c478bd9Sstevel@tonic-gate /* Two hex string characters for each integer byte */
5877c478bd9Sstevel@tonic-gate
5887c478bd9Sstevel@tonic-gate StringLength = ACPI_MUL_2 (AcpiGbl_IntegerByteWidth);
5897c478bd9Sstevel@tonic-gate break;
5907c478bd9Sstevel@tonic-gate }
5917c478bd9Sstevel@tonic-gate
5927c478bd9Sstevel@tonic-gate /*
5937c478bd9Sstevel@tonic-gate * Create a new String
5947c478bd9Sstevel@tonic-gate * Need enough space for one ASCII integer (plus null terminator)
5957c478bd9Sstevel@tonic-gate */
5967c478bd9Sstevel@tonic-gate ReturnDesc = AcpiUtCreateStringObject ((ACPI_SIZE) StringLength);
5977c478bd9Sstevel@tonic-gate if (!ReturnDesc)
5987c478bd9Sstevel@tonic-gate {
5997c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_NO_MEMORY);
6007c478bd9Sstevel@tonic-gate }
6017c478bd9Sstevel@tonic-gate
6027c478bd9Sstevel@tonic-gate NewBuf = ReturnDesc->Buffer.Pointer;
6037c478bd9Sstevel@tonic-gate
6047c478bd9Sstevel@tonic-gate /* Convert integer to string */
6057c478bd9Sstevel@tonic-gate
6067b1019a6SJerry Jelinek StringLength = AcpiExConvertToAscii (
6077b1019a6SJerry Jelinek ObjDesc->Integer.Value, Base, NewBuf, AcpiGbl_IntegerByteWidth);
6087c478bd9Sstevel@tonic-gate
6097c478bd9Sstevel@tonic-gate /* Null terminate at the correct place */
6107c478bd9Sstevel@tonic-gate
6117c478bd9Sstevel@tonic-gate ReturnDesc->String.Length = StringLength;
6127c478bd9Sstevel@tonic-gate NewBuf [StringLength] = 0;
6137c478bd9Sstevel@tonic-gate break;
6147c478bd9Sstevel@tonic-gate
6157c478bd9Sstevel@tonic-gate case ACPI_TYPE_BUFFER:
6167c478bd9Sstevel@tonic-gate
6177c478bd9Sstevel@tonic-gate /* Setup string length, base, and separator */
6187c478bd9Sstevel@tonic-gate
6197c478bd9Sstevel@tonic-gate switch (Type)
6207c478bd9Sstevel@tonic-gate {
6217c478bd9Sstevel@tonic-gate case ACPI_EXPLICIT_CONVERT_DECIMAL: /* Used by ToDecimalString */
6227c478bd9Sstevel@tonic-gate /*
6237c478bd9Sstevel@tonic-gate * From ACPI: "If Data is a buffer, it is converted to a string of
6247c478bd9Sstevel@tonic-gate * decimal values separated by commas."
6257c478bd9Sstevel@tonic-gate */
6267c478bd9Sstevel@tonic-gate Base = 10;
6277c478bd9Sstevel@tonic-gate
6287c478bd9Sstevel@tonic-gate /*
629db2bae30SDana Myers * Calculate the final string length. Individual string values
6307c478bd9Sstevel@tonic-gate * are variable length (include separator for each)
6317c478bd9Sstevel@tonic-gate */
6327c478bd9Sstevel@tonic-gate for (i = 0; i < ObjDesc->Buffer.Length; i++)
6337c478bd9Sstevel@tonic-gate {
6347c478bd9Sstevel@tonic-gate if (ObjDesc->Buffer.Pointer[i] >= 100)
6357c478bd9Sstevel@tonic-gate {
6367c478bd9Sstevel@tonic-gate StringLength += 4;
6377c478bd9Sstevel@tonic-gate }
6387c478bd9Sstevel@tonic-gate else if (ObjDesc->Buffer.Pointer[i] >= 10)
6397c478bd9Sstevel@tonic-gate {
6407c478bd9Sstevel@tonic-gate StringLength += 3;
6417c478bd9Sstevel@tonic-gate }
6427c478bd9Sstevel@tonic-gate else
6437c478bd9Sstevel@tonic-gate {
6447c478bd9Sstevel@tonic-gate StringLength += 2;
6457c478bd9Sstevel@tonic-gate }
6467c478bd9Sstevel@tonic-gate }
6477c478bd9Sstevel@tonic-gate break;
6487c478bd9Sstevel@tonic-gate
6497c478bd9Sstevel@tonic-gate case ACPI_IMPLICIT_CONVERT_HEX:
6507c478bd9Sstevel@tonic-gate /*
6517c478bd9Sstevel@tonic-gate * From the ACPI spec:
6527c478bd9Sstevel@tonic-gate *"The entire contents of the buffer are converted to a string of
6537c478bd9Sstevel@tonic-gate * two-character hexadecimal numbers, each separated by a space."
6547c478bd9Sstevel@tonic-gate */
6557c478bd9Sstevel@tonic-gate Separator = ' ';
6567c478bd9Sstevel@tonic-gate StringLength = (ObjDesc->Buffer.Length * 3);
6577c478bd9Sstevel@tonic-gate break;
6587c478bd9Sstevel@tonic-gate
6597c478bd9Sstevel@tonic-gate case ACPI_EXPLICIT_CONVERT_HEX: /* Used by ToHexString */
6607c478bd9Sstevel@tonic-gate /*
6617c478bd9Sstevel@tonic-gate * From ACPI: "If Data is a buffer, it is converted to a string of
6627c478bd9Sstevel@tonic-gate * hexadecimal values separated by commas."
6637c478bd9Sstevel@tonic-gate */
6647c478bd9Sstevel@tonic-gate StringLength = (ObjDesc->Buffer.Length * 3);
6657c478bd9Sstevel@tonic-gate break;
6667c478bd9Sstevel@tonic-gate
6677c478bd9Sstevel@tonic-gate default:
6687c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_BAD_PARAMETER);
6697c478bd9Sstevel@tonic-gate }
6707c478bd9Sstevel@tonic-gate
6717c478bd9Sstevel@tonic-gate /*
67230082d0cSmyers * Create a new string object and string buffer
6737c478bd9Sstevel@tonic-gate * (-1 because of extra separator included in StringLength from above)
674aa2aa9a6SDana Myers * Allow creation of zero-length strings from zero-length buffers.
6757c478bd9Sstevel@tonic-gate */
676aa2aa9a6SDana Myers if (StringLength)
677aa2aa9a6SDana Myers {
678aa2aa9a6SDana Myers StringLength--;
679aa2aa9a6SDana Myers }
680aa2aa9a6SDana Myers
681aa2aa9a6SDana Myers ReturnDesc = AcpiUtCreateStringObject ((ACPI_SIZE) StringLength);
6827c478bd9Sstevel@tonic-gate if (!ReturnDesc)
6837c478bd9Sstevel@tonic-gate {
6847c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_NO_MEMORY);
6857c478bd9Sstevel@tonic-gate }
6867c478bd9Sstevel@tonic-gate
6877c478bd9Sstevel@tonic-gate NewBuf = ReturnDesc->Buffer.Pointer;
6887c478bd9Sstevel@tonic-gate
6897c478bd9Sstevel@tonic-gate /*
6907c478bd9Sstevel@tonic-gate * Convert buffer bytes to hex or decimal values
6917c478bd9Sstevel@tonic-gate * (separated by commas or spaces)
6927c478bd9Sstevel@tonic-gate */
6937c478bd9Sstevel@tonic-gate for (i = 0; i < ObjDesc->Buffer.Length; i++)
6947c478bd9Sstevel@tonic-gate {
6957c478bd9Sstevel@tonic-gate NewBuf += AcpiExConvertToAscii (
6967b1019a6SJerry Jelinek (UINT64) ObjDesc->Buffer.Pointer[i], Base, NewBuf, 1);
6977c478bd9Sstevel@tonic-gate *NewBuf++ = Separator; /* each separated by a comma or space */
6987c478bd9Sstevel@tonic-gate }
6997c478bd9Sstevel@tonic-gate
7007c478bd9Sstevel@tonic-gate /*
7017c478bd9Sstevel@tonic-gate * Null terminate the string
7027c478bd9Sstevel@tonic-gate * (overwrites final comma/space from above)
7037c478bd9Sstevel@tonic-gate */
704aa2aa9a6SDana Myers if (ObjDesc->Buffer.Length)
705aa2aa9a6SDana Myers {
706aa2aa9a6SDana Myers NewBuf--;
707aa2aa9a6SDana Myers }
7087c478bd9Sstevel@tonic-gate *NewBuf = 0;
7097c478bd9Sstevel@tonic-gate break;
7107c478bd9Sstevel@tonic-gate
7117c478bd9Sstevel@tonic-gate default:
7127b1019a6SJerry Jelinek
7137c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_TYPE);
7147c478bd9Sstevel@tonic-gate }
7157c478bd9Sstevel@tonic-gate
7167c478bd9Sstevel@tonic-gate *ResultDesc = ReturnDesc;
7177c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_OK);
7187c478bd9Sstevel@tonic-gate }
7197c478bd9Sstevel@tonic-gate
7207c478bd9Sstevel@tonic-gate
7217c478bd9Sstevel@tonic-gate /*******************************************************************************
7227c478bd9Sstevel@tonic-gate *
7237c478bd9Sstevel@tonic-gate * FUNCTION: AcpiExConvertToTargetType
7247c478bd9Sstevel@tonic-gate *
7257c478bd9Sstevel@tonic-gate * PARAMETERS: DestinationType - Current type of the destination
7267c478bd9Sstevel@tonic-gate * SourceDesc - Source object to be converted.
7277c478bd9Sstevel@tonic-gate * ResultDesc - Where the converted object is returned
7287c478bd9Sstevel@tonic-gate * WalkState - Current method state
7297c478bd9Sstevel@tonic-gate *
7307c478bd9Sstevel@tonic-gate * RETURN: Status
7317c478bd9Sstevel@tonic-gate *
7327c478bd9Sstevel@tonic-gate * DESCRIPTION: Implements "implicit conversion" rules for storing an object.
7337c478bd9Sstevel@tonic-gate *
7347c478bd9Sstevel@tonic-gate ******************************************************************************/
7357c478bd9Sstevel@tonic-gate
7367c478bd9Sstevel@tonic-gate ACPI_STATUS
AcpiExConvertToTargetType(ACPI_OBJECT_TYPE DestinationType,ACPI_OPERAND_OBJECT * SourceDesc,ACPI_OPERAND_OBJECT ** ResultDesc,ACPI_WALK_STATE * WalkState)7377c478bd9Sstevel@tonic-gate AcpiExConvertToTargetType (
7387c478bd9Sstevel@tonic-gate ACPI_OBJECT_TYPE DestinationType,
7397c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT *SourceDesc,
7407c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT **ResultDesc,
7417c478bd9Sstevel@tonic-gate ACPI_WALK_STATE *WalkState)
7427c478bd9Sstevel@tonic-gate {
7437c478bd9Sstevel@tonic-gate ACPI_STATUS Status = AE_OK;
7447c478bd9Sstevel@tonic-gate
7457c478bd9Sstevel@tonic-gate
74627f7c583Smyers ACPI_FUNCTION_TRACE (ExConvertToTargetType);
7477c478bd9Sstevel@tonic-gate
7487c478bd9Sstevel@tonic-gate
7497c478bd9Sstevel@tonic-gate /* Default behavior */
7507c478bd9Sstevel@tonic-gate
7517c478bd9Sstevel@tonic-gate *ResultDesc = SourceDesc;
7527c478bd9Sstevel@tonic-gate
7537c478bd9Sstevel@tonic-gate /*
7547c478bd9Sstevel@tonic-gate * If required by the target,
7557c478bd9Sstevel@tonic-gate * perform implicit conversion on the source before we store it.
7567c478bd9Sstevel@tonic-gate */
7577c478bd9Sstevel@tonic-gate switch (GET_CURRENT_ARG_TYPE (WalkState->OpInfo->RuntimeArgs))
7587c478bd9Sstevel@tonic-gate {
7597c478bd9Sstevel@tonic-gate case ARGI_SIMPLE_TARGET:
7607c478bd9Sstevel@tonic-gate case ARGI_FIXED_TARGET:
7617c478bd9Sstevel@tonic-gate case ARGI_INTEGER_REF: /* Handles Increment, Decrement cases */
7627c478bd9Sstevel@tonic-gate
7637c478bd9Sstevel@tonic-gate switch (DestinationType)
7647c478bd9Sstevel@tonic-gate {
7657c478bd9Sstevel@tonic-gate case ACPI_TYPE_LOCAL_REGION_FIELD:
7667c478bd9Sstevel@tonic-gate /*
7677c478bd9Sstevel@tonic-gate * Named field can always handle conversions
7687c478bd9Sstevel@tonic-gate */
7697c478bd9Sstevel@tonic-gate break;
7707c478bd9Sstevel@tonic-gate
7717c478bd9Sstevel@tonic-gate default:
7727b1019a6SJerry Jelinek
7737c478bd9Sstevel@tonic-gate /* No conversion allowed for these types */
7747c478bd9Sstevel@tonic-gate
775aa2aa9a6SDana Myers if (DestinationType != SourceDesc->Common.Type)
7767c478bd9Sstevel@tonic-gate {
7777c478bd9Sstevel@tonic-gate ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
7787c478bd9Sstevel@tonic-gate "Explicit operator, will store (%s) over existing type (%s)\n",
7797c478bd9Sstevel@tonic-gate AcpiUtGetObjectTypeName (SourceDesc),
7807c478bd9Sstevel@tonic-gate AcpiUtGetTypeName (DestinationType)));
7817c478bd9Sstevel@tonic-gate Status = AE_TYPE;
7827c478bd9Sstevel@tonic-gate }
7837c478bd9Sstevel@tonic-gate }
7847c478bd9Sstevel@tonic-gate break;
7857c478bd9Sstevel@tonic-gate
7867c478bd9Sstevel@tonic-gate case ARGI_TARGETREF:
7877b1019a6SJerry Jelinek case ARGI_STORE_TARGET:
7887c478bd9Sstevel@tonic-gate
7897c478bd9Sstevel@tonic-gate switch (DestinationType)
7907c478bd9Sstevel@tonic-gate {
7917c478bd9Sstevel@tonic-gate case ACPI_TYPE_INTEGER:
7927c478bd9Sstevel@tonic-gate case ACPI_TYPE_BUFFER_FIELD:
7937c478bd9Sstevel@tonic-gate case ACPI_TYPE_LOCAL_BANK_FIELD:
7947c478bd9Sstevel@tonic-gate case ACPI_TYPE_LOCAL_INDEX_FIELD:
7957c478bd9Sstevel@tonic-gate /*
796db2bae30SDana Myers * These types require an Integer operand. We can convert
7977c478bd9Sstevel@tonic-gate * a Buffer or a String to an Integer if necessary.
7987c478bd9Sstevel@tonic-gate */
799*35786f68SRobert Mustacchi Status = AcpiExConvertToInteger (SourceDesc, ResultDesc,
800*35786f68SRobert Mustacchi ACPI_IMPLICIT_CONVERSION);
8017c478bd9Sstevel@tonic-gate break;
8027c478bd9Sstevel@tonic-gate
8037c478bd9Sstevel@tonic-gate case ACPI_TYPE_STRING:
8047c478bd9Sstevel@tonic-gate /*
805db2bae30SDana Myers * The operand must be a String. We can convert an
8067c478bd9Sstevel@tonic-gate * Integer or Buffer if necessary
8077c478bd9Sstevel@tonic-gate */
8087c478bd9Sstevel@tonic-gate Status = AcpiExConvertToString (SourceDesc, ResultDesc,
8097b1019a6SJerry Jelinek ACPI_IMPLICIT_CONVERT_HEX);
8107c478bd9Sstevel@tonic-gate break;
8117c478bd9Sstevel@tonic-gate
8127c478bd9Sstevel@tonic-gate case ACPI_TYPE_BUFFER:
8137c478bd9Sstevel@tonic-gate /*
814db2bae30SDana Myers * The operand must be a Buffer. We can convert an
8157c478bd9Sstevel@tonic-gate * Integer or String if necessary
8167c478bd9Sstevel@tonic-gate */
8177c478bd9Sstevel@tonic-gate Status = AcpiExConvertToBuffer (SourceDesc, ResultDesc);
8187c478bd9Sstevel@tonic-gate break;
8197c478bd9Sstevel@tonic-gate
8207c478bd9Sstevel@tonic-gate default:
8217b1019a6SJerry Jelinek
8227b1019a6SJerry Jelinek ACPI_ERROR ((AE_INFO,
8237b1019a6SJerry Jelinek "Bad destination type during conversion: 0x%X",
8247c478bd9Sstevel@tonic-gate DestinationType));
8257c478bd9Sstevel@tonic-gate Status = AE_AML_INTERNAL;
8267c478bd9Sstevel@tonic-gate break;
8277c478bd9Sstevel@tonic-gate }
8287c478bd9Sstevel@tonic-gate break;
8297c478bd9Sstevel@tonic-gate
8307c478bd9Sstevel@tonic-gate case ARGI_REFERENCE:
8317c478bd9Sstevel@tonic-gate /*
8327c478bd9Sstevel@tonic-gate * CreateXxxxField cases - we are storing the field object into the name
8337c478bd9Sstevel@tonic-gate */
8347c478bd9Sstevel@tonic-gate break;
8357c478bd9Sstevel@tonic-gate
8367c478bd9Sstevel@tonic-gate default:
8377b1019a6SJerry Jelinek
83830082d0cSmyers ACPI_ERROR ((AE_INFO,
83926f3cdf0SGordon Ross "Unknown Target type ID 0x%X AmlOpcode 0x%X DestType %s",
8407c478bd9Sstevel@tonic-gate GET_CURRENT_ARG_TYPE (WalkState->OpInfo->RuntimeArgs),
84130082d0cSmyers WalkState->Opcode, AcpiUtGetTypeName (DestinationType)));
8427c478bd9Sstevel@tonic-gate Status = AE_AML_INTERNAL;
8437c478bd9Sstevel@tonic-gate }
8447c478bd9Sstevel@tonic-gate
8457c478bd9Sstevel@tonic-gate /*
8467c478bd9Sstevel@tonic-gate * Source-to-Target conversion semantics:
8477c478bd9Sstevel@tonic-gate *
8487c478bd9Sstevel@tonic-gate * If conversion to the target type cannot be performed, then simply
8497c478bd9Sstevel@tonic-gate * overwrite the target with the new object and type.
8507c478bd9Sstevel@tonic-gate */
8517c478bd9Sstevel@tonic-gate if (Status == AE_TYPE)
8527c478bd9Sstevel@tonic-gate {
8537c478bd9Sstevel@tonic-gate Status = AE_OK;
8547c478bd9Sstevel@tonic-gate }
8557c478bd9Sstevel@tonic-gate
8567c478bd9Sstevel@tonic-gate return_ACPI_STATUS (Status);
8577c478bd9Sstevel@tonic-gate }
858